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A006921 Diagonals of Pascal's triangle mod 2 interpreted as binary numbers.
(Formerly M2252)
+0
1
1, 1, 3, 2, 7, 5, 13, 8, 29, 21, 55, 34, 115, 81, 209, 128, 465, 337, 883, 546, 1847, 1301, 3357, 2056, 7437, 5381, 14087, 8706, 29443, 20737, 53505, 32768, 119041, 86273, 226051, 139778, 472839, 333061, 859405, 526344, 1903901, 1377557, 3606327 (list; graph; listen)
OFFSET

0,3

REFERENCES

B. R. Hodgson, On some number sequences related to the parity of binomial coefficients, Fib. Quart., 30 (1992), 35-47.

CROSSREFS

Adjacent sequences: A006918 A006919 A006920 this_sequence A006922 A006923 A006924

Sequence in context: A069888 A073281 A130922 this_sequence A014693 A033318 A093780

KEYWORD

nonn,easy

AUTHOR

njas

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Last modified October 12 15:26 EDT 2008. Contains 144830 sequences.


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